Continuous sampling ion mobility spectrometers and methods therefor
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United States of America Patent
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Apr 14, 2009
Grant Date -
Jun 19, 2008
app pub date -
Dec 14, 2006
filing date -
Dec 14, 2006
priority date (Note) -
Expired
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Abstract
An ion mobility spectrometer may include a flow channel having an inlet end and an outlet end. A deflection electrode is positioned within the flow channel so that a non-linear electric field is created between at least a portion of the flow channel and at least a portion of the deflection electrode when an electrostatic potential is placed across the deflection electrode and the flow channel. The ion mobility spectrometer also includes means for producing ions at a position upstream from the leading edge of the deflection electrode, so that ions produced thereby are deflected by the deflection electrode into the non-linear electric field. A detector positioned within the flow channel for detects ions from the non-linear electric field.
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